<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta http-equiv="x-ua-compatible" content="IE=edge" >
	<!-- 宽度===当前屏幕的宽度，缩放比例为当前不缩放 -->
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>汉堡按钮</title>
	<link href="lib/lib/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>

<!-- <nav class="navbar navbar-default" role="navigation">
        <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar-collapse" aria-expanded="false">
            <span class="sr-only">汉堡按钮</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>           
        </button>
    这里可以定义品牌图标
        <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar-collapse" aria-expanded="false">

    <div class="collapse navbar-collapse" id="navbar-collapse">
        <ul class="nav navbar-nav">
            <li class="active"><a href="##">系列教程</a></li>
            <li><a href="##">名师介绍</a></li>
            <li><a href="##">成功案例</a></li>
            <li><a href="##">关于我们</a></li>
        </ul>
</div>

</nav>
 -->

<nav class="navbar navbar-default" role="navigation">

<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar-collapse" aria-expanded="false">
	<span class="sr-only" collapsed" data-toggle="collapse">汉堡按钮</span>
	<span class="icon-bar"></span>
    <span class="icon-bar"></span>
    <span class="icon-bar"></span> 
</button>



<div class="collapse navbar-collapse" id="navbar-collapse">
	<ul class="nav navbar-nav">
		<br>
		<li class="active"><a href="##">系列教程</a></li>
		<li><a href="##">名师介绍</a></li>
        <li><a href="##">成功案例</a></li>
        <li><a href="##">关于我们</a></li>
	</ul>
</div>
</nav>


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<script src="lib/jquery/jquery-1.11.0.min.js"></script>
<script src="lib/lib/js/bootstrap.min.js"></script>
</body>
</html>